01833oam 2200517 450 991070565240332120170516110219.0(CKB)5470000002451873(OCoLC)606416832(OCoLC)300525073(OCoLC)995470000002451873(EXLCZ)99547000000245187320100411d1998 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierMedicare, many HMOs experience high rates of beneficiary disenrollment : report to the Special Committee on Aging, U.S. SenateWashington, D.C. :United States General Accounting Office, 1998.1 online resource (43 pages) illustrations"GAO/HEHS-98-142.""B-279786.""April 1998."Includes bibliographical references.Medicare, many HMOs experience high rates of beneficiary disenrollment MedicareStatisticsHealth maintenance organizationsUnited StatesStatisticsManaged care plans (Medical care)United StatesStatisticsStatistics.lcgftMedicareHealth maintenance organizationsManaged care plans (Medical care)368.4/26/00973United States.Congress.Senate.Special Committee on Aging,OCLCEOCLCEOCLCQOCLCFOCLCOOCLCQOCLCOGPOBOOK9910705652403321Medicare, many HMOs experience high rates of beneficiary disenrollment : report to the Special Committee on Aging, U.S. Senate3342910UNINA